EP0940559A2 - Dispositif et procédé pour mesurer le diamètre d'un corps obtenu dans le sol par injection à haute pression - Google Patents

Dispositif et procédé pour mesurer le diamètre d'un corps obtenu dans le sol par injection à haute pression Download PDF

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Publication number
EP0940559A2
EP0940559A2 EP99250063A EP99250063A EP0940559A2 EP 0940559 A2 EP0940559 A2 EP 0940559A2 EP 99250063 A EP99250063 A EP 99250063A EP 99250063 A EP99250063 A EP 99250063A EP 0940559 A2 EP0940559 A2 EP 0940559A2
Authority
EP
European Patent Office
Prior art keywords
hdi
measuring
diameter
measuring line
pressure injection
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP99250063A
Other languages
German (de)
English (en)
Other versions
EP0940559A3 (fr
Inventor
Stephan Eberhard Bruder
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BRUDER, STEPHAN EBERHARD
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from DE19834731A external-priority patent/DE19834731C1/de
Application filed by Individual filed Critical Individual
Publication of EP0940559A2 publication Critical patent/EP0940559A2/fr
Publication of EP0940559A3 publication Critical patent/EP0940559A3/fr
Withdrawn legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B47/00—Survey of boreholes or wells
    • E21B47/08—Measuring diameters or related dimensions at the borehole
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D1/00—Investigation of foundation soil in situ
    • E02D1/08—Investigation of foundation soil in situ after finishing the foundation structure
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
    • E02D5/22—Piles
    • E02D5/34—Concrete or concrete-like piles cast in position ; Apparatus for making same
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
    • E02D5/22—Piles
    • E02D5/34—Concrete or concrete-like piles cast in position ; Apparatus for making same
    • E02D5/38—Concrete or concrete-like piles cast in position ; Apparatus for making same making by use of mould-pipes or other moulds
    • E02D5/42—Concrete or concrete-like piles cast in position ; Apparatus for making same making by use of mould-pipes or other moulds by making use of pressure liquid or pressure gas for compacting the concrete
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B23/00—Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells
    • E21B23/14—Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells for displacing a cable or a cable-operated tool, e.g. for logging or perforating operations in deviated wells
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D2250/00—Production methods
    • E02D2250/003—Injection of material
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D2300/00—Materials
    • E02D2300/0004—Synthetics
    • E02D2300/0018—Cement used as binder
    • E02D2300/002—Concrete

Definitions

  • the present invention relates to a measuring device according to the Preamble of claim 1 and a method for determining the diameter of an HDI body according to the generic term of claim 5.
  • HDI high pressure injection method
  • the HDI bodies become the foundation of a building, an education of retaining walls and sealing soles, etc. used. Retaining walls and Sealing soles are formed in that HDI body immediately are created side by side, with the edges forming overlap a closed area.
  • the HDI body which in total should form the closed and sealed wall or sealing sole, always have an intended diameter.
  • there may occasionally be an HDI body has a constriction that becomes one in the wall or sole leaky defect if this does not result in an adequate Established connection with the neighboring HDI body becomes. This is due to inhomogeneities in the soil to be worked, typically different strengths of the soil or rubble.
  • the high pressure injection jet can not in the desired, the uniform diameter of the HDI body-defining route to be injected into the soil.
  • DE 196 22 282 C1 provides a method and a device with which during the manufacture of a HDI body whose diameter can be determined. These are based on an ultrasonic transit time measurement in connection with a defined liquid medium, e.g. Water for this purpose separately injected into the high-pressure injection material as a measuring jet becomes.
  • a defined liquid medium e.g. Water
  • the disadvantage here is that it is not guaranteed in every case is that the measurement signal is within the measurement beam or reproduces in the immediate vicinity, but that it depends on material conditions in the vicinity of the measuring beam under circumstances not intended Lanes propagated and so falsified the measurement result.
  • DE 44 29 917 A1 describes a measuring method with a umbrella-like measuring rod known. From the position and radial Spreading of probe arms becomes the distance to the fixed The outer edge of the HDI body is determined as long as the injected material has not yet hardened. The boom construction Due to the system, the HDI body to be measured does not can be monitored over its entire height.
  • the object of the present invention is therefore a measuring device and a method for determining the diameter of a To create HDI body which is a reliable measurement along enable the entire height of the HDI body and which work with simple means.
  • a basic idea of the invention is a floating body or flow body into the high pressure injection jet bring that pulls out a measuring line attached to the injection pipe.
  • the float reaches the end of the extension path the measuring line the deflection point of the high pressure injection jet, i.e. the maximum length of the beam and the corresponding one
  • the rope length corresponds to the radius of the HDI body.
  • the float positions itself independently in the strongest flow in the flow center.
  • One on the Measuring line acting pre-tension prevents the Float.
  • the invention has the advantage that the radius measurement with a simple rope length measurement can.
  • the radius can also be used to create an HDI body continuously over the entire scope and the whole Height of the HDI body can be measured.
  • Obstacles generate the defects, located and by position and Size can be determined exactly. You get an accurate and constant up-to-date information about the effective range actually achieved of the high pressure injection jet and can be timely initiate targeted procedural changes. This will get you into the Position offset, by controlling the injection tube and the injection jet to compensate for the obstacle or neighboring Form or arrange the HDI body accordingly to compensate.
  • Figure 1 illustrates a defective HDI body 3 in Longitudinal section. It is made in soil 2, which is exemplary in the area of the wall a harder or denser one Point 2 ', which is in the cylindrical HDI body 3rd extends into it. The desired uniform diameter d of the HDI body is therefore in the form of a constriction on this Position 2 'not reached.
  • the HDI body 3 therefore has one there Void F on that in the HDI body production Readjustment of the injection jet (see Fig. 3 and 5) balanced can be.
  • Figure 2 shows in cross section one of several side by side arranged vertical HDI bodies 3 formed sealing sole 30. They essentially overlap in such a way that with one exception a defect F is a closed horizontal surface is formed. To illustrate the flaw F is an example a defect F shown in FIG. 1, the to a leak in the sealing base 30 can result.
  • the section through the sealing sole 30 corresponds to one Section through the HDI body 3 along the line A-A in Fig. 1st
  • FIG. 3 shows in longitudinal section a part of a soil 2 sunk drill pipe 1 of a high pressure injection drill.
  • a round arrow 9 indicates that to produce the cylindrical HDI body 3 'a rotational movement about the longitudinal axis of the Drill pipe 1 takes place while the injection jet 10 in the soil 2 brings injection material in a known manner.
  • the injection material is in the cavity via a pipe 11 17 of the drill pipe 1 supplied.
  • Typical is e.g. B. a pressure value of 500 bar.
  • the process is commonly referred to as a high pressure injection process.
  • the high-pressure injection jet 10 is shown schematically in FIG dashed line as an outward opening Funnel shown. Instead of the end value d of the desired one Diameter only the radius is shown with the name "1/2 * d". This final value d naturally results among other things from the outlet pressure and velocity of the high-pressure injection jet 10 from the nozzle 8 and the hardness and composition of the compact soil.
  • measuring device with which the length of the Effective range of the high pressure injection jet 10 by means of a Cable route is measured. This is from a measuring line 5 generated by a coil 4 of a float 10 am free end of the measuring line 5 is pulled out.
  • the spool 4 is provided with a retraction mechanism, which the measuring line 5 is biased against the pulling direction.
  • the coil 4 is in the example shown Cavity 17 of the drill pipe 1 arranged.
  • the exit point the measuring line 5 is as close as possible to the nozzle 8, so that the float 6 in its starting position when rewound Measuring line 5 in the effective range of the high pressure injection jet comes to rest.
  • the measuring line 5 is a plastic-coated Steel rope trained.
  • the retraction mechanism is in place in the simplest case from a spring, which the coil 4 in Direction of rotation applied.
  • the floating body 6 at the free end of the measuring line 5 is aerodynamically favorable designed, especially in the form of drops.
  • This 4 according to FIG. a thick end with a large outer curvature 61 in the direction of the outflow and taper 62 in Flow direction, ensures independent positioning of the float 6 in the range of the maximum flow rate.
  • the float 6 When the high pressure injection jet 10 is turned on, i.e. when the high pressure injection jet 10 starts, from the nozzle 8 the tube 11 to emerge, the float 6 from his Starting position from the flow of the high pressure injection jet 10 swept away.
  • the measuring line 5 is also from the under Preload standing coil 4 unwound.
  • the float 10 "floats" in the center of the high-pressure injection jet 10, because the high pressure injection jet 10 is known to be there has the greatest speed. This process is roughly comparable to a small ball at a fountain always "dances" at the top and in the center, d. i.e., he positions itself automatically in the area of the strongest current.
  • the fact that the coil 4 is under tension is a Drifting of the float 6 excluded.
  • the measuring device also has a device 7 for Detect the extent ⁇ of the unwinding of the tether 5 from the Coil 4.
  • This sensor device 7 can, for. B. an angle encoder be, which measures the angle of rotation ⁇ by which the coil 4 during of the unwinding process of the measuring line 5 rotates. From the angle of rotation ⁇ is taking into account the diameter of the coil 4 the length of the unwound measuring line 5 can be calculated. Since the Float 6 always at the end point of the high pressure injection jet 10 is located, is also the currently reached The diameter of the HDI body can be determined. At the end point of the high-pressure injection jet 10 becomes the directional HDI flow redirected.
  • the tension in the measuring cable 5 ensures that of the floating body 6 of the deflected flow no longer follows. So that floats 6 in Flow maximum at the deflection point that corresponds to the current Effective range corresponds.
  • the extended rope route and the Length of the float 6 corresponds to the distance between the Exit point of the HDI beam 10 and the deflection point of the Flow.
  • the measuring device also has a control unit CTRL on, symbolically in Figure 3 as so-called Black box with a dashed connection to the facility 7 for detecting the amount ⁇ of unwinding the measuring line 5 is shown.
  • control unit CTRL can also be a Raising or lowering the drill pipe and thus the responsible for the exit of the high pressure injection jet 10 Effect nozzle 8 on tube 11 to the desired HDI body 3rd also regarding its height (and not only regarding its Diameter). In doing so, the one causing the withdrawal Force "switched off” so that the measuring line 5 through the Float 6 is processed again until the Float 6 again at the top of the high pressure injection jet 10 "floats".
  • a great advantage of this measuring device is that the diameter of the HDI body 3 actually always reached can be precisely determined “online” and thus so far (because of the Danger of developing the described defects) usual Reservations can be omitted.
  • the HDI body 3 can thus be shorter Time and with less material.
  • FIG. 5 In the development of the present invention according to FIG. 5 is the measuring device with the coil 4 in a housing 9, which is arranged in a separate pipe section RS is.
  • the pipe section RS is between the drill pipe 1 and one Drill head B can be used in the manner of a drill pipe and by means of to lock conventional couplings releasably.
  • This has in particular the advantage of the existing drill pipe 1 after State of the art by means of such a separate pipe section RS can be added. High-pressure injection devices can thus can be easily retrofitted.

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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Structural Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Civil Engineering (AREA)
  • Paleontology (AREA)
  • Fluid Mechanics (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Environmental & Geological Engineering (AREA)
  • Geophysics (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Soil Sciences (AREA)
  • Measuring Arrangements Characterized By The Use Of Fluids (AREA)
EP99250063A 1998-03-06 1999-03-04 Dispositif et procédé pour mesurer le diamètre d'un corps obtenu dans le sol par injection à haute pression Withdrawn EP0940559A3 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE19809596 1998-03-06
DE19809596 1998-03-06
DE19834731A DE19834731C1 (de) 1998-03-06 1998-07-31 Meßvorrichtung und Verfahren zum Bestimmen des Durchmessers eines HDI-Körpers
DE19834731 1998-07-31

Publications (2)

Publication Number Publication Date
EP0940559A2 true EP0940559A2 (fr) 1999-09-08
EP0940559A3 EP0940559A3 (fr) 2002-09-25

Family

ID=26044400

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EP99250063A Withdrawn EP0940559A3 (fr) 1998-03-06 1999-03-04 Dispositif et procédé pour mesurer le diamètre d'un corps obtenu dans le sol par injection à haute pression

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EP (1) EP0940559A3 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19949393C1 (de) * 1999-10-13 2001-06-07 Keller Grundbau Gmbh Vorrichtung und Verfahren zum Herstellen von Stütz- oder Wandelementen in einem Boden mittels eines Düsenstrahlverfahrens
DE10064187C1 (de) * 2000-12-22 2002-05-08 Keller Grundbau Gmbh Vorrichtung zum Messen des Durchmessers von im Boden mittels eines Düsenstrahlverfahrens hergestellten Stütz- oder Wandelementen
DE10113804A1 (de) * 2001-03-21 2002-10-02 Keller Grundbau Gmbh Vorrichtung zum Messen des Radius bzw.Durchmessers von Hohlräumen
DE10249849B3 (de) * 2002-10-25 2004-06-03 Stump Spezialtiefbau Gmbh Reichweitenfühlvorrichtung für eine Düsenstrahlsäule
DE102006002838B3 (de) * 2006-01-20 2007-09-13 Gud Geotechnik Und Dynamik Consult Gmbh Vorrichtung und Verfahren zum Herstellen von Bodenkörpern im Untergrund

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4429917A1 (de) 1994-08-23 1996-02-29 Keller Grundbau Gmbh Bestimmung des Durchmessers oder der Wandstärke von Stütz- oder Wandelementen
DE19622282C1 (de) 1996-06-03 1997-08-07 Schneider Nikolaus Dipl Ing Un Verfahren und Vorrichtung zur Vermessung von Bohrlochwandungen oder von Wandungen eines von einem Bohrloch aus erzeugten Hohlraums

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NO854710L (no) * 1985-11-25 1987-05-26 Hoksrud Lars Oeivind Fremgangsmåte for kontroll og styring av injeksjonssonens utstrekning ved jetinjisering av herdbart bindemiddel i jordarter, samt anordning for gjennomføring av fremgangsmåten.
FR2689534A1 (fr) * 1992-04-06 1993-10-08 Sif Entreprise Bachy Procédé de réalisation d'écrans d'étanchéité souterrains, écrans ainsi produits, et dispositif à jet pour la mise en Óoeuvre de ce procédé.
US5435668A (en) * 1993-08-26 1995-07-25 Chemical Grouting Co., Ltd. Method for controlling a final pile diameter in a cast-in-place of solidification pile by a jet process

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4429917A1 (de) 1994-08-23 1996-02-29 Keller Grundbau Gmbh Bestimmung des Durchmessers oder der Wandstärke von Stütz- oder Wandelementen
DE19622282C1 (de) 1996-06-03 1997-08-07 Schneider Nikolaus Dipl Ing Un Verfahren und Vorrichtung zur Vermessung von Bohrlochwandungen oder von Wandungen eines von einem Bohrloch aus erzeugten Hohlraums

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19949393C1 (de) * 1999-10-13 2001-06-07 Keller Grundbau Gmbh Vorrichtung und Verfahren zum Herstellen von Stütz- oder Wandelementen in einem Boden mittels eines Düsenstrahlverfahrens
DE10064187C1 (de) * 2000-12-22 2002-05-08 Keller Grundbau Gmbh Vorrichtung zum Messen des Durchmessers von im Boden mittels eines Düsenstrahlverfahrens hergestellten Stütz- oder Wandelementen
DE10113804A1 (de) * 2001-03-21 2002-10-02 Keller Grundbau Gmbh Vorrichtung zum Messen des Radius bzw.Durchmessers von Hohlräumen
DE10113804C2 (de) * 2001-03-21 2003-01-16 Keller Grundbau Gmbh Vorrichtung zum Messen des Radius bzw.Durchmessers von Hohlräumen
DE10249849B3 (de) * 2002-10-25 2004-06-03 Stump Spezialtiefbau Gmbh Reichweitenfühlvorrichtung für eine Düsenstrahlsäule
DE102006002838B3 (de) * 2006-01-20 2007-09-13 Gud Geotechnik Und Dynamik Consult Gmbh Vorrichtung und Verfahren zum Herstellen von Bodenkörpern im Untergrund

Also Published As

Publication number Publication date
EP0940559A3 (fr) 2002-09-25

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